Aston Martin V8 Downpipes M177

The Bomiz downpipes for the Aston Martin Vantage 4.0 is built to reduce backpressure, increase turbo efficiency, and bring out the full character of the M177 twin-turbo V8. Constructed from high-quality T-304 stainless steel, this setup replaces both the primary and secondary sections with a direct bolt-on solution — no cutting or modifications required.

OEM-spec V-band flanges and factory-style mounting points ensure a perfect fit with minimal effort. TIG-welded throughout for strength and long-term reliability, this system delivers real gains and a sharper, more aggressive tone that transforms the driving experience.

Specifications

• T-304 Stainless Steel Construction

• Replaces Both Primary & Secondary Downpipes

• OEM-Spec V-Band Flanges and Brackets

• TIG Welded for Strength and Longevity

• Available in Catless (Competition) or High-Flow Catted Configurations

• Lifetime Warranty

What’s Included

• Complete Downpipe System (Primary + Secondary)

• OEM-Style V-Band Flanges and Mounts

• Installation Instructions

Fitment

• 2018+ Aston Martin Vantage / AMR / F1 Edition (M177 4.0L Twin-Turbo V8)

Notice – Competition Use Only

This product is intended for off-road/competition use only.

WARNING: Please note that certain aftermarket exhaust systems may not comply with applicable US (including California) laws and regulations, and may therefore be prohibited for use on highways or roads, or on roads or vehicles otherwise subject to emissions control requirements. California prohibits the use of any aftermarket exhaust system that modifies, removes or replaces original equipment catalysts, unless CARB has issued an Executive Order as to such part or system.

Bomiz parts or exhaust systems/components used or intended for use on “racing vehicles” (i.e. a competition vehicle used exclusively for competition on closed-course circuits) do not require an exemption or Executive Order from CARB to be sold in California. However, such parts are prohibited from use on California public highways or roads, even if occasionally used “off-road.”